Refrigerating apparatus



Sept. 25, 1934.

R. R. CANDOR REFRIGERATING'APPARATUS Filed Feb. 27, 1930 2 Sheets-Sheetl A TTOZNE YJ- 2 Sheets-Sheet 2 NTOR R. R. CANDOR REFRIGERATINGAPPARATUS Filed Feb. 27, 1930 Sept. 25, 1934.

Patented Sept. 25, 1934 I 1,974,736 REFRIGERATING APPARATUS Robert R.Candor, Dayton, Ohio, assignor to Frigidaire Corporation ration ofDelaware Application February 27,

, Dayton, Ohio, a corpo- 1930, Serial No. 431,759

q 8 Claims. (oi. 62-116) This invention relates to refrigeratingapparatus and more particularly to a refrigerating apparatus adapted tocool liquids such as drinking water, beverages or the like.

An object of this invention is to provide a simple and efficient liquidcooling device particularly adapted to be used with refrigeratingsystems oi the household type now on the market.

Another object of this invention is to provide a liquid cooling devicewhich may be placed in a cabinet or the like, which cabinet may have astorage compartment so that the compartment may be efiiciently cooled bythe liquid cooling device.

Further objects and advantages oi? the present invention will beapparent from the following de scription, reference being had to theaccompany ing drawings, wherein a preferred form oi the presentinvention is clearly shown.

In the drawings:

Fig. l is a front elevation of a refrigerating paratus embodyingfeatures of this invention;

Fig. 2 is a vertical cross-sectional view taken along the line 2--2 ofFig. i with portions shown 2 diagrammatically;

Fig. 3 is a horizontal cross-sectional view taken along the line 3-3 ofFig. 2;, and

Fig. 4 is a vertical cross-sectional view showing a portion of aslightly modified form of the apparatus shown in Fig. 2.

A refrigerating apparatus embodying features of this invention mayinclude a liquid cooling device, which device may comprise a liquidrefrigerant header 20, a liquid refrigerant duct 21 extending from thesaid header and a liquid passage forming means 22 surrounding said ductin such a manner that liquid refrigerant is maintained within the ductand thermal exchange is insured between the liquid refrigerant in theduct and the liquid in the liquid passage forming means 22 so that theliquid discharge from said means 22 is at a desirable temperature; Inthe embodiment shown in Figs. 1, 2 and 3 the header may be placed in acompartment 23 in such a manner that the header 20 is adapted to coolthe compart-' ment 23, preferably by direct contact between the air inthe compartment and the header 20. This insures a desirably coolcompartment 23 wherein bottled drinks and small packages or containersfor food may be inserted and may be subjected to desirable refrigerationtemperatures.

The liquid passing through the liquid passage forming means 22 may haveits heat efficiently removed. I This may be accomplished by providsin avane 24, preferably in the form of a spiral and preferably welded orsoldered to the duct 21. Preferably this vane is spaced slightly fromthe outer wall of the means 22. The vane 24 thus increases the amount ofthermal contact between v the liquid in the means 22 and the liquidrefrigerant in the duct 21. g

. The cooled liquid may be removed from the means 22 in any desirablemanner and preferably this is accomplished by means of a faucet 26placed outside of the cabinet and connected to 6d the lower end of themeans 22 as by a pipe 27.

A drain basin 213: may be placed underneath the faucet 26 and this maybe connected to a pipe 29 joining'pipe 30 and by pipe 31 through anysuitable drain disposing means such as a large reseriii voir or a drainpipe of the building in which the cabinet is installed. The drain 30 isthus adapted to remove any condensate within the compartment 23.

The liquid may be supplied to the means 22 in any desired manner andpreferably it is supplied from a demijohn 32. This may be accomplishedby providing means 33 for supporting the demiiohn on the cabinet whichmay include a connection 34 and 'a pipe 34a between the means forsupporting the demijohn and the means 22 heretofore described.

The compartment 23 may be provided with a door 35, and preferably theliquid cooling device is placed at one side of the cabinet so that the.85 major portion of the compartment 23 is left unobstructed and theportion of the compartment 23 immediately behind the door 35 is totallyfree of obstructions. This provides a very desirable compartment forrefrigeration of miscellaneous 00 articles. Ifdesired a shelf 36 maybeinserted in the compartment 23.

The compartment 23 may include a sheet metal lining 36 provided with alining top 3'7 resting on an out-turned flange 38 of the lining 36. Theflange 38 is adapted to rest on frame members 39 forming part of thegeneral framework in the cabinet. The insulation 40 is interposedbetween the lining 36 and the lining top 37 and the outer casings of thecabinet. I

Preferably the header 20 is provided with a valve 41 controlled by themeans of a float 42 for maintaining a predetermined level of liquidrefrigerant in the header 20. The evaporated refrigerant may be takenout of the header 20 through a funnel-shaped intake 43. Theconstructi'on of these parts may be substantially of the character shownanddescribed in the patent to R. G. Osborn, No. 1,556,708 patentedOctoberv 13, 1925.

circulating means.

The refrigerant may be circulated through the liquid cooling device byany suitable refrigerant 'ihus a compressor may supply compressedrefrigerant to a condenser 51 from which the condensed refrigerant maybe stored in a liquid refrigerant receiver 52, From thence the liquidrefrigerant may be conveyed by pipe 53 to the inlet fitting of which thevalve ll is a part. The evaporated refrigerant entering thefunnel-shaped intake 43 may return through the pipe 54 to the compressor50 preferably through the crankcase. The compressor 50 may be driven byelectric motor 70 and governed by conditions within the refrigeratingsystem, preferably by means of a' snap switch 55 which stops and startsthe motor 54 in accordance with the pressure of the refrigerant and theheader 20, for instance, by connecting bellows 56 through the pipe 57with the pipe 54. The bellows 56 may be provided with suitableconnections" 58 operating a snap switch 55.

In the modification shown in Fig. 4, means22 corresponding to the means22 shown in Figs. 1, 2 and 3 may be provided .with an extension 60 forcompletely surrounding the header 20. This provides a sleeve around theheader 20 so that the liquid from the demijohn 32 is subjected to thecooling action not only of the duct 21 but also of the header 20. Theextension 60 may be connected by the pipe 61 with the cup-shaped member34 which corresponds to the one shown in Figs. 1 and 2. Otherwise theremaining parts shown in Fig. 4 may be the same, and functionin the samemanner as the corresponding parts shown in Figs. 1, 2 and 3.

While the form of embodiment of the invention as herein disclosed,constitutes a preferred form, it is to be understood that other formsmight be adopted, all coming within the scope of the claims whichfollow.

What is claimed is as follows:

1. A liquid cooling device comprising a cabinet having a storagecompartment, 9. liquid refrigerant header in said compartment, a. liquidrefrigerant duct extending from said header, 2. liquid passage formingmeans surrounding said duct, a spiral vane on said duct, means forsupporting a. demijohn on said cabinet, a. connection between 'said lastnamed means and said liquid passage forming means, and liquid dischargemeans outside said cabinet connection to said liquid passage formingmeans.

2. A-liquid cooling device comprising a cabinet havinga storagecompartment, 9. liquid refrigerant header in said compartment, aliquidrefrigerant duct extending from said header, 9. liquid having a.storage compartment, a. liquid refrigerant header exposed in saidcompartment for cooling said compartment, a liquid refrigerant ductextending from said header, a liquid passage forming means surroundingsaid duct, a spiral navavse vane on said duct, means for supplyingdrinin ing water to said liquid passage forming means for cooling saidwater, and water dispensing means connected to said liquid passageforming means.

i. A liquid cooling device comprising a cabinet having a storagecompartment, 2. liquid refrigerant header exposed in said compartmentfor cooling said compartment, a liquid refrigerant duct extending fromsaid header, a liquid passage forming means surrounding said duct, meansfor supplying drinking water to said liquid passage forming means forcooling said water, and water dispensing means connected to said liquidpassage. forming means; SE

5. A liquid cooling device comprising a cabinet having a storagecompartment, a liquid refrigerant header enposed in said compartment forcooling said compartment, a liquid refrigerant duct extending from saidheader, a liquid passage forming means surrounding said duct, saidheader being provided with a float controlled valve for maintaining apredetermined level of liquid refrigerant in said header, means forsupplying drinking water to said liquid passage forming 1% means forcooling said water, and water dispensing means connected to said liquidpassage forming means.

6. A liquid cooling device comprising a cabinet having a storagecompartment, a liquid refrigerant header exposed in said compartment forcooling said compartment, a. liquid refrigerant duct extending from saidheader, a liquid passage forming means surrounding said duct, a spiralvane off said duct, said header being provided lid with a floatcontrolled valve for maintaining a predetermined level of liquidrefrigerant in said header, means for supplying drinking water to saidliquid passage forming means for cooling said water, and waterdispensing means connected to said liquid passage forming means.

'7. In a liquid cooling device including a cabinet having an insulatedstorage compartment therein, a refrigerant conduit in thermal contactwith the storage compartment for cooling the same, said refrigerantconduit having a portion extending from said portion thereof in thermalcontact with the storage compartment and being insulated from the airwithin the storage compartment by a liquid passage forming means, meansfor supplying drinking water to said liquid passage forming means forcooling said water, and water dispensing means connected to said liquidpassage forming means.

8. Inc liquid cooling device including a cabi- 1% net having aninsulated storage compartment therein, a refrigerant conduit in thermalcontact with the storage compartment for cooling the some, saidrefrigerant 'conduit having a portion extending from said portionthereof in thermal 13g contact with the storage compartment and beingsurrounded by a liquid passage forming means,

means for supplying drinking water to said liquid passage forming meansfor cooling said water, and water dispensing means connected to said 1%liquid passage forming means.

ROBERT R. CANDOR.

